title: An ultrafast surface-bound photo-active molecular motor.
abstract: We report the synthesis and surface attachment of an ultrafast light-driven rotary molecular motor. Transient absorption spectroscopy revealed that the half-life of the rate determining thermal step of the rotary cycle in solution is 38 ± 1 ns, the shortest yet observed, making this the fastest molecular motor reported. Incorporation of acetylene legs into the structure allowed the motors to be grafted to azide-modified quartz and silicon substrates using the "click" 1,3-dipolar cycloaddition reaction.
authors.affiliation: Department of Organic Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands. B.L.Feringa@rug.nl.
authors.forename: Jérôme
authors.initials: J
authors.lastname: Vachon
authors.forename: Gregory T
authors.initials: GT
authors.lastname: Carroll
authors.forename: Michael M
authors.initials: MM
authors.lastname: Pollard
authors.forename: Emile M
authors.initials: EM
authors.lastname: Mes
authors.forename: Albert M
authors.initials: AM
authors.lastname: Brouwer
authors.forename: Ben L
authors.initials: BL
authors.lastname: Feringa
mesh_terms: D000114:Acetylene / Q000737:chemistry*; D001386:Azides / Q000737:chemistry; D008027:Light; D011791:Quartz / Q000737:chemistry; D012399:Rotation; D012825:Silicon / Q000737:chemistry; D013499:Surface Properties
chemical_list: D001386:Azides; D011791:Quartz; D000114:Acetylene; D012825:Silicon